A split-type automotive shock absorber damping testing device

Abstract

This utility model discloses a split-type automotive shock absorber damping testing device. By adjusting the lifting mechanism, the height of the person being tested is lowered to below the height of the groove opening. Then, the vehicle to be tested is driven until the tires are on the support plate. After the vehicle stops moving, the power component is driven, causing the first support frame and support plate to swing back and forth in an arc around the first pivot. After stopping the power component, the support plate continues to swing back and forth in an arc around the first pivot due to inertia and elasticity. When the vehicle's shock absorber function is damaged, the repair personnel can immediately see the specific location of the suspension problem by listening to abnormal noises from under the vehicle. Once the problem is identified, it is convenient for the repair personnel to quickly repair or replace the damaged part. This device provides better and more accurate testing results, avoiding the hassle of disassembling and testing the shock absorber separately and then reinstalling it.

Description

Technical Field

[0001] This utility model relates to the field of automotive testing equipment technology, and in particular to a split-type automotive shock absorber damping testing device. Background Technology

[0002] With economic development, people have higher and higher requirements for automobiles, including vehicle power, smoothness, and comfort. Shock absorbers are damping devices installed between the vehicle body and the load-bearing wheels to attenuate vibrations and improve ride comfort. At the same time, shock absorbers are also the best way to improve the ride smoothness of a car, so the performance of shock absorbers is crucial.

[0003] Currently, shock absorbers need to be tested after production. For example, an automotive shock absorber lifespan testing device with authorization announcement number CN111473963B allows workers to install the shock absorber at both ends onto a first mounting section and a second mounting section respectively. Then, a controller sends a signal to a swing drive mechanism, which drives the worktable to swing, simulating the stress conditions of the shock absorber during vehicle operation. The drive chamber provides support and guidance for the swing drive mechanism. During operation, a camera monitors the entire process and sends data to the controller. Workers can retrieve the video data afterward, eliminating the need for constant monitoring and significantly reducing workload. During testing, multiple shock absorbers can be tested simultaneously depending on the number of groups set in the first and second mounting sections. Shock absorbers closer to the axis of rotation experience smaller vibration amplitudes, while those further away from the axis of rotation experience larger vibration amplitudes. This effectively simulates the actual stress conditions of the shock absorber, resulting in high data accuracy.

[0004] However, this device can only simulate the stress conditions of the shock absorber, and the test results may have errors compared with the actual usage of the vehicle. In addition, when the shock absorbers installed on the car need to be tested after a period of use, the shock absorbers must be removed separately for testing and then reinstalled, which is very troublesome. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, this utility model provides a split-type automotive shock absorber damping testing device. This addresses the problem that existing testing devices can only simulate the stress conditions of shock absorbers, and the test results may have errors compared to the actual usage of vehicles. Furthermore, when shock absorbers installed on a car need to be tested after a period of use, they must be removed separately for testing and then reinstalled, which is very troublesome.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a split-type automotive shock absorber damping testing device, comprising: A support member, wherein a groove is provided on the support member; Support platform, the support platform being located within the groove; The lifting mechanism, wherein the output end of the lifting mechanism is fixedly connected to the support platform; At least one support plate is movably mounted on a support member. The support plate is used to support the tires of a vehicle. When the tires of the vehicle are on the support plate, the bottom of the vehicle is facing the support platform. At least one vibration mechanism, each vibration mechanism including a power component, a first rotating shaft and a first support frame, one end of the first support frame being fixedly connected to the first rotating shaft, the support plate being disposed on the first support frame, and the power component being used to drive the first support frame and the support plate to perform arc-shaped reciprocating swing around the first rotating shaft; An elastic element is provided, one end of which is fixed to the bottom surface of a support plate. When the height of the support plate changes, the elastic element is in a deformed state.

[0007] Preferably, the power assembly includes a motor, an eccentric wheel, a first connecting plate, a hinge seat, a second connecting plate, and a sleeve rod. The output end of the motor is fixedly connected to the eccentric wheel. The outer periphery of the eccentric wheel is rotatably connected to the first connecting plate via a bearing. One end of the first connecting plate is hinged to the hinge seat. One end of the hinge seat is fixedly connected to the second connecting plate. One end of the second connecting plate is fixedly connected to the sleeve rod. The sleeve rod is fixedly connected to the first rotating shaft.

[0008] Preferably, it also includes a distance sensor, which is fixed to one side of the support plate and is used to detect the change in the height of the support plate.

[0009] Preferably, it further includes two housings, which are fixed to the support member and located on both sides of the groove opening. Each housing is provided with a vibration mechanism. A through hole is opened on the top surface of the housing. The support plate is movably disposed in the through hole. A first support base is fixed inside the housing. A first rotating shaft is rotatably disposed on the first support base. A base is provided inside the housing. The elastic element is fixed between the base and the support plate.

[0010] Preferably, the support plate has side plates on both sides, and the two side plates are rotatably connected to a first rotating rod on opposite sides, and the first rotating rod is fixedly connected to the first support frame.

[0011] Preferably, it further includes a stabilizing and limiting component, which includes a second rotating shaft, a second rotating rod, and a second support frame. The second support frame is parallel to the first support frame. A second support seat is fixed inside the housing. A second rotating shaft is rotatably mounted on the second support seat. The second support frame is fixedly mounted on the second rotating shaft. The two side plates are rotatably connected to a second rotating rod on opposite sides. The second rotating rod is fixedly connected to the second support frame. The line connecting the centers of the second rotating rod and the first rotating rod is perpendicular to the horizontal plane.

[0012] Preferably, the second connecting plate is triangular, having a pointed end and a flat end, the flat end being fixed to the sleeve rod, and the pointed end being fixed to the hinge seat.

[0013] Preferably, the inner wall of the groove is provided with at least one lighting lamp.

[0014] Preferably, a counterweight is fixedly installed at the end of the first support frame away from the first rotating shaft.

[0015] Preferably, the top surface of the support plate is provided with at least two stops.

[0016] Compared with the prior art, the beneficial effects that this utility model can achieve are: This invention lowers the height of the person being tested by adjusting the lifting mechanism until it is below the height of the groove opening. Then, the vehicle to be tested is driven to move, and after the tires are on the support plate, the vehicle is stopped. The power component is then driven to make the first support frame and support plate swing back and forth in an arc around the first pivot. After the power component is stopped, the support plate continues to swing back and forth in an arc around the first pivot due to inertia and elasticity. When the vehicle's shock absorber is damaged, the repair personnel can immediately see the specific location of the suspension problem by listening to abnormal noises from under the vehicle. Once the problem is identified, it is convenient for the repair personnel to quickly repair or replace the damaged part. This device provides better and more accurate testing results, avoiding the hassle of disassembling and testing the shock absorber separately and then reinstalling it. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the novel structure of the support component, housing, support plate, lifting mechanism, support platform, and lighting lamp of this utility model; Figure 3 This is a schematic diagram of the shell, through hole, and support plate structure of this utility model; Figure 4 This is a schematic diagram of the shell, vibration mechanism, and support plate structure of this utility model; Figure 5 This is a schematic diagram of the power assembly and sleeve structure of this utility model; Figure 6 This is a schematic diagram of the structure of the first rotating shaft, first support frame, side plate, support plate, stabilizing and limiting component, and counterweight of this utility model; Figure 7 This is a schematic diagram of the structure of the support plate, elastic element, side, base, first rotating rod, second rotating rod and distance sensor of this utility model; The components include: 1. Housing; 101. Through hole; 2. Support plate; 21. Side plate; 3. Vibration mechanism; 31. Motor; 32. Eccentric wheel; 33. First connecting plate; 34. Hinge seat; 35. Second connecting plate; 36. First rotating shaft; 37. First support frame; 38. Sleeve rod; 4. First rotating rod; 5. Stabilizing and limiting component; 51. Second rotating rod; 52. Second rotating shaft; 53. Second support frame; 6. Elastic element; 7. Base; 8. Counterweight; 9. Stop bar; 10. Distance sensor; 11. Support component; 111. Groove; 12. Lifting mechanism; 13. Support platform; 14. Lighting lamp. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model is further described below in conjunction with specific embodiments. However, the following embodiments are only preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of this utility model.

[0019] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed", "equipped with", "connected", etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0021] like Figures 1-7 As shown, this utility model provides a split-type automotive shock absorber damping testing device, including a support member 11, a support platform 13, a lifting mechanism 12, at least one support plate 2, at least one vibration mechanism 3, and an elastic member 6. The support member 11 has a groove 111; The support platform 13 is located within the groove 111; The output end of the lifting mechanism 12 is fixedly connected to the support platform 13 (the lifting mechanism 12 here can be a scissor-type lifting platform; the specific lifting principle is existing technology and will not be described in detail here). The support plate 2 is movably mounted on the support member 11. The support plate 2 is used to support the tires of the car. When the tires of the car are on the support plate 2, the bottom of the car is facing the support platform 13. Each vibration mechanism 3 includes a power component, a first rotating shaft 36 and a first support frame 37. One end of the first support frame 37 is fixedly connected to the first rotating shaft 36, and the support plate 2 is disposed on the first support frame 37. The power component is used to drive the first support frame 37 and the support plate 2 to swing back and forth in an arc around the first rotating shaft 36. One end of the elastic element 6 is fixed to the bottom surface of the support plate 2. When the height of the support plate 2 changes, the elastic element 6 is in a deformed state (the elastic element 6 here can be a spring). Here, the support 11 is taken as the ground. In order to ensure that the vehicle will not tilt significantly during inspection, when there is no car tire on the support plate 2, the height of the top surface of the support plate 2 is flush with the height of the ground. When testing the shock absorption performance of a car, a person first stands on the support platform 13. The height of the person is lowered by adjusting the lifting mechanism 12 until it is below the height of the groove 111. Then, the car to be tested is driven so that the tires are on the support plate 2. The car is then stopped so that it stops moving. The power component is then driven so that the first support frame 37 and the support plate 2 swing back and forth in an arc around the first rotating shaft 36. After that, the power component is stopped. Under the action of inertia and elastic element 6, the support plate 2 continues to swing back and forth in an arc around the first rotating shaft 36. When the shock absorption function of the car is damaged, the maintenance personnel can see the specific part of the car's suspension (such as the rubber bushing, the ball joint of the control arm, etc.) that is causing the problem at the bottom of the car (chassis) based on the abnormal noise they hear. After seeing where the problem is, it is convenient for the maintenance personnel to quickly repair and replace the damaged part later (when the car is stationary). This device allows for testing the shock absorption performance of a car after the suspension (shock absorber) has been installed on the vehicle, resulting in better and more accurate testing. It also enables the timely testing, repair, and replacement of shock absorbers in vehicles in use, avoiding the hassle of disassembling and testing the shock absorbers separately and then reinstalling them.

[0022] like Figure 4 , Figure 5 and Figure 6As shown, the power assembly includes a motor 31, an eccentric wheel 32, a first connecting plate 33, a hinge seat 34, a second connecting plate 35, and a sleeve rod 38. The output end of the motor 31 is fixedly connected to the eccentric wheel 32. The outer periphery of the eccentric wheel 32 is rotatably connected to the first connecting plate 33 through a bearing. One end of the first connecting plate 33 is hinged to the hinge seat 34. One end of the hinge seat 34 is fixedly connected to the second connecting plate 35. One end of the second connecting plate 35 is fixedly connected to the sleeve rod 38. The sleeve rod 38 is fixedly connected to the first rotating shaft 36. Specifically, the working principle of the power component is as follows: the motor 31 drives the eccentric wheel 32 to rotate, the eccentric wheel 32 drives the first connecting plate 33 to swing eccentrically (mainly swinging up and down, but not vertically up and down). The first connecting plate 33 drives the hinge seat 34, the second connecting plate 35, the sleeve rod 38 and the first rotating shaft 36 to swing back and forth in an arc around the center line of the first rotating shaft 36, and finally drives the first support frame 37 and the support plate 2 to swing back and forth in an arc around the center line of the first rotating shaft 36.

[0023] like Figure 7 As shown, it also includes a distance sensor 10, which is fixed to one side of the support plate 2. The distance sensor 10 is used to detect the change in the height position of the support plate 2 (the distance sensor 10 here can be a resistive displacement sensor, and the specific working principle is existing technology, which will not be described in detail here). The movement distance of the support plate 2 is detected by the distance sensor 10. When the movement distance of the support plate 2 is within the qualified range (the specific qualified range is the value set by the program, which will not be elaborated here), it indicates that the shock absorption performance of the car is good. When it exceeds the qualified range, it indicates that the shock absorption performance of the car is poor, and the shock absorber needs to be repaired or replaced in time. By setting it in this way, the detection accuracy can be further improved. When the results of human observation and detection by the distance sensor 10 are consistent, it can be decided whether a certain part of the suspension needs to be repaired or replaced, so as to achieve the function of mutual verification between humans and machines.

[0024] like Figure 1 , Figure 3 , Figure 4 and Figure 6 As shown, it also includes two housings 1 (here, housing 1 is pre-embedded in the support member 11). The two housings 1 are fixed on the support member 11 and located on both sides of the groove 111. Each housing 1 is provided with a vibration mechanism 3. A through hole 101 is opened on the top surface of the housing 1. The support plate 2 is movably disposed in the through hole 101. A first support seat is fixed in the housing 1. A first rotating shaft 36 is rotatably disposed on the first support seat. A base 7 is provided in the housing 1. An elastic member 6 is fixed between the base 7 and the support plate 2. By setting up two housings 1, there are two support plates 2, which allows for simultaneous detection of the two front wheels or the two rear wheels of a car. After detecting the two front wheels, the car is driven so that the two rear wheels are positioned on the support plates 2 for detection. This avoids the problem of the equipment taking up too much space due to the use of four support plates 2. Furthermore, this setup allows for the detection of cars of different lengths, and compared to using only one support plate 2, it reduces the trouble of adjusting the car's position multiple times.

[0025] like Figure 6 and Figure 7 As shown, the support plate 2 has side plates 21 on both sides, and the two side plates 21 are rotatably connected to the first rotating rod 4 on the opposite side. The first rotating rod 4 is fixedly connected to the first support frame 37. With this configuration, when the first support frame 37 reciprocates in an arc around the first pivot 36, the support plate 2 can move vertically up and down under the pressure of the vehicle, while also shifting slightly left and right (in...). Figure 6 From the perspective of [the vehicle's angle], this can effectively prevent the car tires from detaching from the support plate 2 when the car is tilted and vibrating.

[0026] like Figure 6 and Figure 7 As shown, it also includes a stabilizing and limiting component 5, which includes a second rotating shaft 52, a second rotating rod 51, and a second support frame 53. The second support frame 53 is parallel to the first support frame 37. A second support seat is fixed inside the housing 1. The second rotating shaft 52 is rotatably mounted on the second support seat. The second support frame 53 is fixedly mounted on the second rotating shaft 52. The two side plates 21 are rotatably connected to the second rotating rod 51 on opposite sides. The second rotating rod 51 is fixedly connected to the second support frame 53. The line connecting the center of the second rotating rod 51 and the center of the first rotating rod 4 is perpendicular to the horizontal plane. To further ensure that the support plate 2 can move vertically up and down under the pressure of the vehicle when the first support frame 37 swings back and forth in an arc around the first rotating shaft 36, a stabilizing limiting component 5 is set up. When the power component drives the first support frame 37 to swing back and forth in an arc around the first rotating shaft 36, the support plate 2 drives the side plate 21 to move. The side plate 21 drives the second support frame 53 to swing back and forth in an arc around the second rotating shaft 52. The second support frame 53 and the first support frame 37 move synchronously. Under the limiting action of the first rotating rod 4 and the second rotating rod 51, the support plate 2 can move vertically up and down more stably, while also shifting slightly to the left and right.

[0027] like Figure 4 and Figure 5 As shown, the second connecting plate 35 is triangular, with a pointed end and a flat end. The flat end is fixed to the sleeve rod 38, and the pointed end is fixed to the hinge seat 34. If both ends of the second connecting plate 35 are flat, the horizontal distance between the motor 31 and the support plate 2 will increase, thereby increasing the volume of the entire device. If both ends of the second connecting plate 35 are pointed, the strength of the second connecting plate 35 will be insufficient. When the power component drives it to swing, the second connecting plate 35 may be at risk of breaking due to insufficient strength. By setting the second connecting plate 35 to a triangular shape, the volume of the entire device is relatively small and the structure is more compact while ensuring sufficient strength of the second connecting plate 35.

[0028] like Figure 2 As shown, at least one lighting lamp 14 is provided on the inner wall of the groove 111 to provide sufficient lighting for maintenance personnel inside the groove 111 to observe the bottom of the vehicle.

[0029] like Figure 6 As shown, a counterweight 8 is fixedly installed on the end of the first support frame 37 away from the first rotating shaft 36 to pre-compress the elastic element 6 and make the overall testing equipment more stable.

[0030] like Figure 6 As shown, the top surface of the support plate 2 is provided with at least two stop bars 9, which can limit the movement of the car tires, so that the car is in a relatively stable state when the support plate 2 vibrates.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A split type automobile shock absorbing damping detection device characterized by comprising: include: Support member (11), on which a groove (111) is provided; A support platform (13) is located within a groove (111); Lifting mechanism (12), the output end of which is fixedly connected to support platform (13); At least one support plate (2) is movably mounted on the support member (11). The support plate (2) is used to support the tires of the car. When the tires of the car are on the support plate (2), the bottom of the car is facing the support platform (13). At least one vibration mechanism (3), each vibration mechanism (3) includes a power component, a first rotating shaft (36) and a first support frame (37), one end of the first support frame (37) is fixedly connected to the first rotating shaft (36), the support plate (2) is disposed on the first support frame (37), and the power component is used to drive the first support frame (37) and the support plate (2) to swing back and forth in an arc around the first rotating shaft (36); The elastic element (6) is fixed at one end to the bottom surface of the support plate (2). When the height of the support plate (2) changes, the elastic element (6) is in a deformed state.

2. The split type automobile shock absorbing damping detection device according to claim 1, characterized in that: The power assembly includes a motor (31), an eccentric wheel (32), a first connecting plate (33), a hinge seat (34), a second connecting plate (35), and a sleeve rod (38). The output end of the motor (31) is fixedly connected to the eccentric wheel (32). The outer periphery of the eccentric wheel (32) is rotatably connected to the first connecting plate (33) through a bearing. One end of the first connecting plate (33) is hinged to the hinge seat (34). One end of the hinge seat (34) is fixedly connected to the second connecting plate (35). One end of the second connecting plate (35) is fixedly connected to the sleeve rod (38). The sleeve rod (38) is fixedly connected to the first rotating shaft (36).

3. The split automotive shock and strut damping detection apparatus of claim 2, wherein: It also includes a distance sensor (10), which is fixed to one side of the support plate (2) and is used to detect the change in the height position of the support plate (2).

4. The split type automobile shock absorbing damping detection device according to claim 3, characterized in that: It also includes two housings (1), which are fixed on the support member (11) and located on both sides of the groove (111). Each housing (1) is provided with a vibration mechanism (3). The top surface of the housing (1) is provided with a through hole (101). The support plate (2) is movably disposed in the through hole (101). A first support seat is fixed in the housing (1). A first rotating shaft (36) is rotatably disposed on the first support seat. A base (7) is provided in the housing (1). The elastic member (6) is fixed between the base (7) and the support plate (2).

5. The split automotive shock and strut damping detection apparatus of claim 4, wherein: The support plate (2) has side plates (21) on both sides. The two side plates (21) are rotatably connected to the first rotating rod (4) on the opposite side. The first rotating rod (4) is fixedly connected to the first support frame (37).

6. The split automotive shock and strut damping detection apparatus of claim 5, wherein: It also includes a stabilizing and limiting component (5), which includes a second rotating shaft (52), a second rotating rod (51), and a second support frame (53). The second support frame (53) is parallel to the first support frame (37). A second support seat is fixed inside the housing (1). The second rotating shaft (52) is rotatably mounted on the second support seat. The second support frame (53) is fixedly mounted on the second rotating shaft (52). The two side plates (21) are rotatably connected to the second rotating rod (51) on opposite sides. The second rotating rod (51) is fixedly connected to the second support frame (53). The line connecting the center of the second rotating rod (51) and the center of the first rotating rod (4) is perpendicular to the horizontal plane.

7. The split automotive shock and strut damping detection apparatus of claim 2, wherein: The second connecting plate (35) is triangular, with a pointed end and a flat end. The flat end is fixed to the sleeve rod (38), and the pointed end is fixed to the hinge seat (34).

8. The split automotive shock and strut damping detection apparatus of claim 1, wherein: At least one lighting lamp (14) is provided on the inner wall of the groove (111).

9. The split automotive shock and strut damping detection apparatus of claim 2, wherein: A counterweight (8) is fixedly installed at the end of the first support frame (37) away from the first rotating shaft (36).

10. The split automotive shock and strut damping detection apparatus of claim 1, wherein: The top surface of the support plate (2) is provided with at least two stops (9).

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